/**
 * Copyright (c) 2009 Cycle Information Technology
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this 
 * software and associated documentation files (the "Software"), to deal in the Software 
 * without restriction, including without limitation the rights to use, copy, modify, 
 * merge, publish, distribute, sublicense, and/or sell copies of the Software, and to 
 * permit persons to whom the Software is furnished to do so, subject to the following 
 * conditions:
 * 
 * The above copyright notice and this permission notice shall be included in all copies 
 * or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, 
 * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A 
 * PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT 
 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF 
 * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE 
 * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 * 
 */
package com.cycleit.cycleframework.event{
   import flash.events.EventDispatcher;
   import flash.events.IEventDispatcher;

   /**
    * Implementación de IEventDispatcher, sistema de eventos propio del framework.
	* @see flash.events.EventDispatcher 
    */ 
   public class CycleEventDispatcher {
      private static var instance : CycleEventDispatcher;  
      private var eventDispatcher : IEventDispatcher;
      
      /**
       * Returns the single instance of the dispatcher
       */ 
      public static function getInstance() : CycleEventDispatcher {
         if ( instance == null ) {
            instance = new CycleEventDispatcher(new SingleClass());
		 } 
         return instance;
      }
      
      /**
       * Constructor.
       */
      public function CycleEventDispatcher(s:SingleClass) {
         eventDispatcher = new EventDispatcher(null);
      }
      
      /**
       * Adds an event listener.
       */
      public function addEventListener( type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false ) : void {
         eventDispatcher.addEventListener( type, listener, useCapture, priority, useWeakReference );
      }
      
      /**
       * Removes an event listener.
       */
      public function removeEventListener( type:String, listener:Function, useCapture:Boolean = false ) : void {
         eventDispatcher.removeEventListener( type, listener, useCapture );
      }

      /**
       * Dispatches a cairngorm event.
       */
      public function dispatchEvent( event:CycleEvent ) : Boolean {
         return eventDispatcher.dispatchEvent( event );
      }
      
      /**
       * Returns whether an event listener exists.
       */
      public function hasEventListener( type:String ) : Boolean {
         return eventDispatcher.hasEventListener( type );
      }
      
      /**
       * Returns whether an event will trigger.
       */
      public function willTrigger(type:String) : Boolean {
         return eventDispatcher.willTrigger( type );
      }
   }
}
class SingleClass{};